Everything is wrong with this footage! When both the arm and Signus 14 are in frame the Earth below is very close but when it’s from the POV of the arm at 21 second mark you can see the curved horizon in frame behind Signus which means either the Earth shrunk or they moved away few thousand miles. Also the Earth rotates in two directions and how can both objects maintain the same speed as they fall of 17,000 MPH. You will notice also some hardware flapping around on Signus indicating drag and friction and yet it has no effect whatsoever on the extended panels. This is total Mickey Mouse!